109443085 has 16 divisors (see below), whose sum is σ = 138314880. Its totient is φ = 82969920.

The previous prime is 109443073. The next prime is 109443121. The reversal of 109443085 is 580344901.

It is not a de Polignac number, because 109443085 - 2¹¹ = 109441037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109443085.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8170 + ... + 16900.

It is an arithmetic number, because the mean of its divisors is an integer number (8644680).

Almost surely, 2^109443085 is an apocalyptic number.

It is an amenable number.

109443085 is a deficient number, since it is larger than the sum of its proper divisors (28871795).

109443085 is a wasteful number, since it uses less digits than its factorization.

109443085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8868.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 109443085 is about 10461.5049108625. The cubic root of 109443085 is about 478.3320070486.

Adding to 109443085 its reverse (580344901), we get a palindrome (689787986).

The spelling of 109443085 in words is "one hundred nine million, four hundred forty-three thousand, eighty-five".